mirror of
https://github.com/fmtlib/fmt.git
synced 2024-11-27 04:20:06 +00:00
456 lines
16 KiB
CMake
456 lines
16 KiB
CMake
cmake_minimum_required(VERSION 3.8...3.26)
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# Fallback for using newer policies on CMake <3.12.
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if (${CMAKE_VERSION} VERSION_LESS 3.12)
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cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
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endif ()
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# Determine if fmt is built as a subproject (using add_subdirectory)
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# or if it is the master project.
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if (NOT DEFINED FMT_MASTER_PROJECT)
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set(FMT_MASTER_PROJECT OFF)
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if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
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set(FMT_MASTER_PROJECT ON)
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message(STATUS "CMake version: ${CMAKE_VERSION}")
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endif ()
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endif ()
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# Joins arguments and places the results in ${result_var}.
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function(join result_var)
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set(result "")
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foreach (arg ${ARGN})
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set(result "${result}${arg}")
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endforeach ()
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set(${result_var} "${result}" PARENT_SCOPE)
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endfunction()
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# DEPRECATED! Should be merged into add_module_library.
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function(enable_module target)
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if (MSVC)
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set(BMI ${CMAKE_CURRENT_BINARY_DIR}/${target}.ifc)
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target_compile_options(${target}
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PRIVATE /interface /ifcOutput ${BMI}
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INTERFACE /reference fmt=${BMI})
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set_target_properties(${target} PROPERTIES ADDITIONAL_CLEAN_FILES ${BMI})
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set_source_files_properties(${BMI} PROPERTIES GENERATED ON)
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endif ()
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endfunction()
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# Adds a library compiled with C++20 module support.
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# `enabled` is a CMake variables that specifies if modules are enabled.
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# If modules are disabled `add_module_library` falls back to creating a
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# non-modular library.
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#
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# Usage:
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# add_module_library(<name> [sources...] FALLBACK [sources...] [IF enabled])
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function(add_module_library name)
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cmake_parse_arguments(AML "" "IF" "FALLBACK" ${ARGN})
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set(sources ${AML_UNPARSED_ARGUMENTS})
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add_library(${name})
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set_target_properties(${name} PROPERTIES LINKER_LANGUAGE CXX)
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if (NOT ${${AML_IF}})
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# Create a non-modular library.
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target_sources(${name} PRIVATE ${AML_FALLBACK})
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return()
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endif ()
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# Modules require C++20.
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target_compile_features(${name} PUBLIC cxx_std_20)
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if (CMAKE_COMPILER_IS_GNUCXX)
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target_compile_options(${name} PUBLIC -fmodules-ts)
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endif ()
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# `std` is affected by CMake options and may be higher than C++20.
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get_target_property(std ${name} CXX_STANDARD)
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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set(pcms)
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foreach (src ${sources})
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get_filename_component(pcm ${src} NAME_WE)
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set(pcm ${pcm}.pcm)
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# Propagate -fmodule-file=*.pcm to targets that link with this library.
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target_compile_options(
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${name} PUBLIC -fmodule-file=${CMAKE_CURRENT_BINARY_DIR}/${pcm})
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# Use an absolute path to prevent target_link_libraries prepending -l
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# to it.
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set(pcms ${pcms} ${CMAKE_CURRENT_BINARY_DIR}/${pcm})
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add_custom_command(
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OUTPUT ${pcm}
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COMMAND ${CMAKE_CXX_COMPILER}
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-std=c++${std} -x c++-module --precompile -c
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-o ${pcm} ${CMAKE_CURRENT_SOURCE_DIR}/${src}
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"-I$<JOIN:$<TARGET_PROPERTY:${name},INCLUDE_DIRECTORIES>,;-I>"
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# Required by the -I generator expression above.
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COMMAND_EXPAND_LISTS
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DEPENDS ${src})
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endforeach ()
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# Add .pcm files as sources to make sure they are built before the library.
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set(sources)
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foreach (pcm ${pcms})
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get_filename_component(pcm_we ${pcm} NAME_WE)
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set(obj ${pcm_we}.o)
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# Use an absolute path to prevent target_link_libraries prepending -l.
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set(sources ${sources} ${pcm} ${CMAKE_CURRENT_BINARY_DIR}/${obj})
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add_custom_command(
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OUTPUT ${obj}
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COMMAND ${CMAKE_CXX_COMPILER} $<TARGET_PROPERTY:${name},COMPILE_OPTIONS>
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-c -o ${obj} ${pcm}
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DEPENDS ${pcm})
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endforeach ()
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endif ()
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target_sources(${name} PRIVATE ${sources})
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endfunction()
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include(CMakeParseArguments)
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# Sets a cache variable with a docstring joined from multiple arguments:
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# set(<variable> <value>... CACHE <type> <docstring>...)
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# This allows splitting a long docstring for readability.
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function(set_verbose)
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# cmake_parse_arguments is broken in CMake 3.4 (cannot parse CACHE) so use
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# list instead.
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list(GET ARGN 0 var)
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list(REMOVE_AT ARGN 0)
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list(GET ARGN 0 val)
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list(REMOVE_AT ARGN 0)
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list(REMOVE_AT ARGN 0)
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list(GET ARGN 0 type)
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list(REMOVE_AT ARGN 0)
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join(doc ${ARGN})
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set(${var} ${val} CACHE ${type} ${doc})
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endfunction()
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# Set the default CMAKE_BUILD_TYPE to Release.
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# This should be done before the project command since the latter can set
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# CMAKE_BUILD_TYPE itself (it does so for nmake).
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if (FMT_MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
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set_verbose(CMAKE_BUILD_TYPE Release CACHE STRING
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"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
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"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
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endif ()
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project(FMT CXX)
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include(GNUInstallDirs)
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set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR} CACHE STRING
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"Installation directory for include files, a relative path that "
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"will be joined with ${CMAKE_INSTALL_PREFIX} or an absolute path.")
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option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
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option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
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OFF)
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# Options that control generation of various targets.
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option(FMT_DOC "Generate the doc target." ${FMT_MASTER_PROJECT})
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option(FMT_INSTALL "Generate the install target." ON)
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option(FMT_TEST "Generate the test target." ${FMT_MASTER_PROJECT})
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option(FMT_FUZZ "Generate the fuzz target." OFF)
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option(FMT_CUDA_TEST "Generate the cuda-test target." OFF)
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option(FMT_OS "Include OS-specific APIs." ON)
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option(FMT_MODULE "Build a module instead of a traditional library." OFF)
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option(FMT_SYSTEM_HEADERS "Expose headers with marking them as system." OFF)
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if (FMT_TEST AND FMT_MODULE)
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# The tests require {fmt} to be compiled as traditional library
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message(STATUS "Testing is incompatible with build mode 'module'.")
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endif ()
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set(FMT_SYSTEM_HEADERS_ATTRIBUTE "")
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if (FMT_SYSTEM_HEADERS)
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set(FMT_SYSTEM_HEADERS_ATTRIBUTE SYSTEM)
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endif ()
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if (CMAKE_SYSTEM_NAME STREQUAL "MSDOS")
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set(FMT_TEST OFF)
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message(STATUS "MSDOS is incompatible with gtest")
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endif ()
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# Get version from core.h
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file(READ include/fmt/core.h core_h)
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if (NOT core_h MATCHES "FMT_VERSION ([0-9]+)([0-9][0-9])([0-9][0-9])")
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message(FATAL_ERROR "Cannot get FMT_VERSION from core.h.")
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endif ()
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# Use math to skip leading zeros if any.
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math(EXPR CPACK_PACKAGE_VERSION_MAJOR ${CMAKE_MATCH_1})
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math(EXPR CPACK_PACKAGE_VERSION_MINOR ${CMAKE_MATCH_2})
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math(EXPR CPACK_PACKAGE_VERSION_PATCH ${CMAKE_MATCH_3})
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join(FMT_VERSION ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.
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${CPACK_PACKAGE_VERSION_PATCH})
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message(STATUS "Version: ${FMT_VERSION}")
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message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
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if (NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
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endif ()
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
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"${CMAKE_CURRENT_SOURCE_DIR}/support/cmake")
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include(CheckCXXCompilerFlag)
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include(JoinPaths)
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if (FMT_MASTER_PROJECT AND NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
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set_verbose(CMAKE_CXX_VISIBILITY_PRESET hidden CACHE STRING
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"Preset for the export of private symbols")
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set_property(CACHE CMAKE_CXX_VISIBILITY_PRESET PROPERTY STRINGS
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hidden default)
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endif ()
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if (FMT_MASTER_PROJECT AND NOT DEFINED CMAKE_VISIBILITY_INLINES_HIDDEN)
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set_verbose(CMAKE_VISIBILITY_INLINES_HIDDEN ON CACHE BOOL
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"Whether to add a compile flag to hide symbols of inline functions")
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endif ()
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if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
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set(PEDANTIC_COMPILE_FLAGS -pedantic-errors -Wall -Wextra -pedantic
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-Wold-style-cast -Wundef
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-Wredundant-decls -Wwrite-strings -Wpointer-arith
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-Wcast-qual -Wformat=2 -Wmissing-include-dirs
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-Wcast-align
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-Wctor-dtor-privacy -Wdisabled-optimization
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-Winvalid-pch -Woverloaded-virtual
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-Wconversion -Wundef
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-Wno-ctor-dtor-privacy -Wno-format-nonliteral)
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
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set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS}
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-Wno-dangling-else -Wno-unused-local-typedefs)
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endif ()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
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set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wdouble-promotion
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-Wtrampolines -Wzero-as-null-pointer-constant -Wuseless-cast
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-Wvector-operation-performance -Wsized-deallocation -Wshadow)
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endif ()
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if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0)
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set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wshift-overflow=2
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-Wnull-dereference -Wduplicated-cond)
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endif ()
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set(WERROR_FLAG -Werror)
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endif ()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -pedantic -Wconversion -Wundef
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-Wdeprecated -Wweak-vtables -Wshadow
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-Wno-gnu-zero-variadic-macro-arguments)
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check_cxx_compiler_flag(-Wzero-as-null-pointer-constant HAS_NULLPTR_WARNING)
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if (HAS_NULLPTR_WARNING)
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set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS}
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-Wzero-as-null-pointer-constant)
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endif ()
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set(WERROR_FLAG -Werror)
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endif ()
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if (MSVC)
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set(PEDANTIC_COMPILE_FLAGS /W3)
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set(WERROR_FLAG /WX)
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endif ()
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if (FMT_MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
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# If Microsoft SDK is installed create script run-msbuild.bat that
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# calls SetEnv.cmd to set up build environment and runs msbuild.
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# It is useful when building Visual Studio projects with the SDK
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# toolchain rather than Visual Studio.
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include(FindSetEnv)
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if (WINSDK_SETENV)
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set(MSBUILD_SETUP "call \"${WINSDK_SETENV}\"")
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endif ()
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# Set FrameworkPathOverride to get rid of MSB3644 warnings.
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join(netfxpath
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"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\"
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".NETFramework\\v4.0")
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file(WRITE run-msbuild.bat "
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${MSBUILD_SETUP}
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${CMAKE_MAKE_PROGRAM} -p:FrameworkPathOverride=\"${netfxpath}\" %*")
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endif ()
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function(add_headers VAR)
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set(headers ${${VAR}})
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foreach (header ${ARGN})
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set(headers ${headers} include/fmt/${header})
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endforeach()
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set(${VAR} ${headers} PARENT_SCOPE)
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endfunction()
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# Define the fmt library, its includes and the needed defines.
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add_headers(FMT_HEADERS args.h chrono.h color.h compile.h core.h format.h
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format-inl.h os.h ostream.h printf.h ranges.h std.h
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xchar.h)
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set(FMT_SOURCES src/format.cc)
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add_module_library(fmt src/fmt.cc FALLBACK
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${FMT_SOURCES} ${FMT_HEADERS} README.md ChangeLog.md
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IF FMT_MODULE)
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add_library(fmt::fmt ALIAS fmt)
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if (FMT_MODULE)
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enable_module(fmt)
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endif ()
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if (FMT_OS)
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target_sources(fmt PRIVATE src/os.cc)
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else()
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target_compile_definitions(fmt PRIVATE FMT_OS=0)
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endif ()
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if (FMT_WERROR)
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target_compile_options(fmt PRIVATE ${WERROR_FLAG})
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endif ()
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if (FMT_PEDANTIC)
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target_compile_options(fmt PRIVATE ${PEDANTIC_COMPILE_FLAGS})
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endif ()
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if (cxx_std_11 IN_LIST CMAKE_CXX_COMPILE_FEATURES)
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target_compile_features(fmt PUBLIC cxx_std_11)
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else ()
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message(WARNING "Feature cxx_std_11 is unknown for the CXX compiler")
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endif ()
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target_include_directories(fmt ${FMT_SYSTEM_HEADERS_ATTRIBUTE} PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
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set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
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set_target_properties(fmt PROPERTIES
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VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
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PUBLIC_HEADER "${FMT_HEADERS}"
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DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}"
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# Workaround for Visual Studio 2017:
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# Ensure the .pdb is created with the same name and in the same directory
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# as the .lib. Newer VS versions already do this by default, but there is no
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# harm in setting it for those too. Ignored by other generators.
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COMPILE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
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COMPILE_PDB_NAME "fmt"
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COMPILE_PDB_NAME_DEBUG "fmt${FMT_DEBUG_POSTFIX}")
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# Set FMT_LIB_NAME for pkg-config fmt.pc. We cannot use the OUTPUT_NAME target
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# property because it's not set by default.
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set(FMT_LIB_NAME fmt)
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if (CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(FMT_LIB_NAME ${FMT_LIB_NAME}${FMT_DEBUG_POSTFIX})
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endif ()
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if (BUILD_SHARED_LIBS)
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target_compile_definitions(fmt PRIVATE FMT_LIB_EXPORT INTERFACE FMT_SHARED)
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endif ()
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if (FMT_SAFE_DURATION_CAST)
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target_compile_definitions(fmt PUBLIC FMT_SAFE_DURATION_CAST)
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endif ()
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add_library(fmt-header-only INTERFACE)
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add_library(fmt::fmt-header-only ALIAS fmt-header-only)
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target_compile_definitions(fmt-header-only INTERFACE FMT_HEADER_ONLY=1)
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target_compile_features(fmt-header-only INTERFACE cxx_std_11)
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target_include_directories(fmt-header-only
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${FMT_SYSTEM_HEADERS_ATTRIBUTE} INTERFACE
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
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# Install targets.
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if (FMT_INSTALL)
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include(CMakePackageConfigHelpers)
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set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
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"Installation directory for cmake files, a relative path that "
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"will be joined with ${CMAKE_INSTALL_PREFIX} or an absolute "
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"path.")
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set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
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set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
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set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
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set(targets_export_name fmt-targets)
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set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
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"Installation directory for libraries, a relative path that "
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"will be joined to ${CMAKE_INSTALL_PREFIX} or an absolute path.")
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set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE STRING
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"Installation directory for pkgconfig (.pc) files, a relative "
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"path that will be joined with ${CMAKE_INSTALL_PREFIX} or an "
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"absolute path.")
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# Generate the version, config and target files into the build directory.
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write_basic_package_version_file(
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${version_config}
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VERSION ${FMT_VERSION}
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COMPATIBILITY AnyNewerVersion)
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join_paths(libdir_for_pc_file "\${exec_prefix}" "${FMT_LIB_DIR}")
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join_paths(includedir_for_pc_file "\${prefix}" "${FMT_INC_DIR}")
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configure_file(
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"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
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"${pkgconfig}"
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@ONLY)
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configure_package_config_file(
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${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
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${project_config}
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INSTALL_DESTINATION ${FMT_CMAKE_DIR})
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set(INSTALL_TARGETS fmt fmt-header-only)
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# Install the library and headers.
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install(TARGETS ${INSTALL_TARGETS} EXPORT ${targets_export_name}
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LIBRARY DESTINATION ${FMT_LIB_DIR}
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ARCHIVE DESTINATION ${FMT_LIB_DIR}
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PUBLIC_HEADER DESTINATION "${FMT_INC_DIR}/fmt"
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
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# Use a namespace because CMake provides better diagnostics for namespaced
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# imported targets.
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export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
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FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
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# Install version, config and target files.
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install(
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FILES ${project_config} ${version_config}
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DESTINATION ${FMT_CMAKE_DIR})
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install(EXPORT ${targets_export_name} DESTINATION ${FMT_CMAKE_DIR}
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NAMESPACE fmt::)
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install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
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endif ()
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if (FMT_DOC)
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add_subdirectory(doc)
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endif ()
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if (FMT_TEST)
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enable_testing()
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add_subdirectory(test)
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endif ()
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# Control fuzzing independent of the unit tests.
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if (FMT_FUZZ)
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add_subdirectory(test/fuzzing)
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# The FMT_FUZZ macro is used to prevent resource exhaustion in fuzzing
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# mode and make fuzzing practically possible. It is similar to
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# FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION but uses a different name to
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# avoid interfering with fuzzing of projects that use {fmt}.
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# See also https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode.
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target_compile_definitions(fmt PUBLIC FMT_FUZZ)
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endif ()
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set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
|
|
if (FMT_MASTER_PROJECT AND EXISTS ${gitignore})
|
|
# Get the list of ignored files from .gitignore.
|
|
file (STRINGS ${gitignore} lines)
|
|
list(REMOVE_ITEM lines /doc/html)
|
|
foreach (line ${lines})
|
|
string(REPLACE "." "[.]" line "${line}")
|
|
string(REPLACE "*" ".*" line "${line}")
|
|
set(ignored_files ${ignored_files} "${line}$" "${line}/")
|
|
endforeach ()
|
|
set(ignored_files ${ignored_files}
|
|
/.git /breathe /format-benchmark sphinx/ .buildinfo .doctrees)
|
|
|
|
set(CPACK_SOURCE_GENERATOR ZIP)
|
|
set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
|
|
set(CPACK_SOURCE_PACKAGE_FILE_NAME fmt-${FMT_VERSION})
|
|
set(CPACK_PACKAGE_NAME fmt)
|
|
set(CPACK_RESOURCE_FILE_README ${PROJECT_SOURCE_DIR}/README.md)
|
|
include(CPack)
|
|
endif ()
|